AMERICA'S FIRST HIGH EARLY STREHGTH PORTLAND CEMENT
JUST TWENTY YEARS AGO, the Moffat
Tunnel was being driven six miles through the
Rockies. Masses of earth and rock, sagging
under the Mountain's weight— pressures up
to ten tons per square foot — had to be held in
check. Ordinary concrete hardened too slowly
to take the crushing loads. Concrete that
provided dependable high early strength was
Years before, anticipating the needs of con-
struction progress, Lone Star Cement tech-
nicians began developing a true high earls
strength Portland cement. Thus, 'Incur 1 was
available when needed. 4 Incor concrete held
up the mountain . . . has been holding it up
ever since . . . blocking off ground waters . .
giving typical *Incor service. Two decades . .
not a dollar for maintenance.
Mr. Glen Turner, Division Engineer of Denver & Rio
Grande's Moffat Division, shown at left, making a
condition survey, writes: " 'Incor' concrete placed in the
Tunnel 20 years ago is in excellent condition. Despite
the tremendous pressures to which these sections ore
subject, there is absolutely no evidence of structural
failure or disintegration.' 7
A NEW ERA IN CONCRETE
*-«BOL OF QUALITY
EVER SINCE 19 00
The technique of concrete construction has been greatly
advanced by reducing the length of time it takes cement to
produce service strength. That is why a new era in construc-
tion began, in 1927, with the introduction of Tncor\ America's
first high early strength Portland cement. One-day curing
with Tncor 1 accomplishes what normally required a week or
longer. By changing weeks into days, Tncor' made concrete a
ready-to-use, year-around construction material.
At first, Incor' filled a vacuum of need on rush jobs, where
speed was paramount. But time is a key factor in costs, and
designers and builders quickly found that time saved with
Incor' usually meant money saved, too. Earlier use at less cost
became a practical reality.
High early strength, earlier use, reduced first cost — these
are primary considerations. But so, too, are ultimate strength,
long-time durability and low upkeep cost. Both sides of the
coin are the first concern of an organization in which quality,
and the performance which it reflects, is nothing short of a
Quality-mindedness made Tncor possible in the first place
through years of research in the chemical structure of Port-
land cement ... it has kept Tncor' and the other Lone Star
Cements constantly abreast of advancing construction de-
mands . . . and it also explains the present publication.
For here is a cross-section of Tncor' performance, as dis-
closed by a Condition Survey of projects up to twenty years
old, covering a wide range of concrete work and exposure con-
ditions. This record of initial and long-time values is doubly
significant today — to Owners, Designers and Builders alike.
Because the higher the cost of construction, the greater the
Tncor' saving, at the outset and through the years,
AMERICA'S FIRST HIGH EARLY STRENGTH PORTLAND CEMENT
Boston Post Road, New Rochelle, N. Y., paved with 'Incor' in 1 928 — heaviest traffic, no maintenance, today's condition excellent
The Record in Highway Service
Twenty years ago extra de-
tour mileage and lost time cost
motorists huge sums. Paving
with 'Incor' and opening con-
crete after 24 hours helped solve
the problem. Roads were kept
open — motorists saved time
money and inconvenience.
In 1928, 'Incor' concrete was
placed on Boston Post Road at
Main and Echo Avenues inter-
section. New Rochelle, N. Y.
Traffic count, then 20,000 cars
and trucks a day, is 50,000 to-
day. A continuous stream of
trucks, weighing up to 30 tons,
punishes this concrete, day and
night. "No maintenance . . .
concrete good for years to come,"
reads Condition Report.
When Boston Post Road was repaved through Larch
mont, N. Y., merchants insisted on the use of Incor' to
prevent business loss. Here, too, 'Incor' concrete is in
first-class condition today, after 16 years of just about
the heaviest pounding any paving ever took.
Boston Post Road, Larchmont, N. Y., as it looks today.
Back in 1927, to avoid delay-
ing cement shipments. Manhat
tan Road intersection near the
Lone Star Cement mill at Lime-
dale Ind.. was repaved with
Incor and opened to traffic in
40 hours, hen a fleet of solid-
tired Mack trucks carrying 2100
barrels of cement, passed over
the new concrete. Today, after
twenty years' hard service, this
concrete is incor'-sound —
staunch as the day it was
What about ultimate strength
Cores drilled in July, 1947, from
this oldest 'Incor' highway
tested by Pittsburgh Testing
Laboratory, show 20- year
strength values as noted on
photo at right.
So runs the record on the
nation's principal highways — a
record of time and money saved.
at the outset and through the
Manhattan Road intersection, near Limeda e Ina after 20 years' hard ser
Lincoln Highway, between Pittsburgh and Johnstown, Pa., concreted in 1 929— condition today, excellent
Bottleneck Highway, near Harrisburg, Pa., concreted with 'Incor' in 1 928— condition today, first-class
In sul) ir ing weather, win-
1 of 1 Pennsylvania wid-
ened Bot neck Highwa; on
1 Susquehan r's west
bank, near Harrisburg. Only
highway into that Cit; rom the
a dc <ur *s impo bit.
I com was optr. i in
hours, mair ining half
ti through the 10b TraT
u >00 cars truck
in ji about tv< kind
of u — concn n
Blue Mound Rood, main Milwoukee arte co es
heavy traffic. Gler Rood intersection, paved
h Incor 1928, has required no maintenonc
— Excellent te ol for Incc says a gh-
Blue Mound Rood intersection, near Milwaukee.
Structures as well as paving,
the record is the same. Relocat-
ing Lincoln Highway east of
Pittsburgh required 600,000 cu.
yd. of fill, 120 ft. high, in a
narrow valley. 'Incor' enabled
the contractor to start the fill
two days after concreting be-
gan, advancing completion by
two months. That was in 1930
photo shows this project in
excellent condition today.
From New England to Texas,
everywhere east of the Rockies,
the record in highway service
runs true to form — important
economies at the outset, equally
significant economies through
dependable long-time service —
a pattern repeated again and
again in all types of work.
Highway tunnel, east of Pittsburgh, concreted with 'Incor' in 1930.
U.S. No. 1, between
Philadelphia and Lans-
downe, Pa., repaved
with 'Incor' in 1930-no
maintenance, good for
years to come.
'Incor' paving at critical
points on U.S. No. 87,
Potter County, Texas-
placed in 1932, still go-
ing strong today.
Mo ' r
WoltKom, Mc Incor povmg. ploced m 1928 o* it look* fodoy
20 Years on Main Street, U.S.A
Inco* n 1929
Close a stint for r< paving
and pro: hm lust that n
ant! tu vc i regain That it
w) In r' has 1>< tm tl»
trd in repaying America 9 !
Main Street! — Ii
la J toda) ' an iea i uatonM
M U!C 111 St Q!Cd lu-
ll 192 I ic pave tc it
Mb n S Walthain — n
business I I is
i — 1 % 9 trucl
a da. Si IfltCtf 'ju Good
on tx ;ir- a I way
eon has ?aken
p p cr an < 4 e
1 Con on Su
- Mot* Sir*- M •
&•« #ortmg oad flopping- pc ♦•*•
To tie up Canal Street, New
Orleans, at Mardi Gras time
would be like barricading New
York's Broadway on New Year's
Eve. In December, 1929, New
Orleans repaved Canal Street
from Claiborne Street to the
River — 18 blocks of paving,
with 21 -ft. sidewalks. Merchants
demanded quick action. Ordi-
nary Portland cement meant
several months of demoralized
business, with traffic re-routed
— and Mardi Gras only a few
'Incor' was used throughout.
Paved a section at a time,
opened the next day, concrete
work went forward rapidly.
Each block was finished 11 days
sooner. 4 Incor' was ready for
Mardi Gras. Merchants stated
'Incor' saved them at least
$200,000 net profit on sales that
would otherwise have been lost.
After nearly 20 years, taxpay-
ers share merchants* satisfaction,
for the concrete is in excellent
condition — no maintenance!
Canal Street, New Orleans — paved with 'Incor' in 1929
Traffic is heavy on U.S. No. 40 in Kansas
City, Kansas. Paved with 'Incor' in 1928,
concrete is sound as the day it was placed,
over 19 years ago.
Ossining, N. Y. Station Plaza paving as it looks today, after over 19 years' hard service
Night temperatures were low,
back in October, 1928, when
New York Central Railroad's
station plaza at Ossining, N. Y.,
was repaved with 'Incor'. Pav-
ing was laid in 70 sections, each
section opened to traffic in 24
hours. A huge electric trans-
former was trucked over 36-
hour-old 'Incor 1 slab without
damage to the freshly-place
concrete. The entire job was
completed in 10 days — 30 days
soonc t than possible with ordi-
nary concrete .
In spit of heavy traffic, the
Incor' concrete is as good as on
opining day. And that, in
nuts! j1. is the service record of
Incur", under pitiless v. it an
gruelling posure, in highwa
rvic< the country over.
Main Street, Kilgore, Texas, paved with 'incor' in 1931— good cN new today
Bridges Many a Gap
Twenty years 1 experience
shows that somewhere in every
bridge-construction project, l In-
cor' saves time and money.
George Westinghouse Bridge, 5-
span concrete structure, carries
the Lincoln Highway 1500 ft.
across Turtle Creek Valley, near
Pittsburgh, Pa.; the 460-ft. cen-
ter span is one of America's
longest concrete arches. Used in
key sections of all arch ribs,
w Incor' gained sufficient strength
in 12 hours to withstand stresses
due to effects of temperature on
Incor' saved 10 days on each
of 10 arch ribs, 100 days in all.
$700 of the contractor's daily
fixed payroll was non-produc-
tive while arch-rib concrete
cured. So 'Incor' saved $70,000
when the bridge was built in
Recent inspection shows con-
crete to be in first-class condi-
tion — typical of 'Incor' perform-
ance on many of the nation's
George Westinghouse Bridge, Pittsburgh, Pa.
Wabash Avenue Bridge, Chicago.
'Incor' with light-weight ag-
gregate was used in pre-cast
sidewalk and roadway slabs for
double-leaf Bascule bridge over
Chicago River at Wabash Ave.
in 1929. Forms were used twice
a day, saving 50%; concrete
slabs piled by crane 8 to 20
hours after casting; 3400-lb.
compressive strength in one day.
Concrete has to be dense and
watertight — moisture absorption
would affect balance between
leaves and counterweights.
Nearly 20 years' exposure has
had no effect on the span's deli-
cate balance — Bridge Engineers
say, "Maintenance-free service
has saved the City real money."
. . . •
i . • '
• 4 <1
f • . . <
it t *
Brindley Creek Bridge, Cullman, Ala., built in 1928. 'Incor' saved 29 days and $1800, "Condition first-class," reads 1947 Report.
Arlington Memorial Bridge, Washington, D. C, 'Incor 1 used in key sections— arches self-supporting 24 hours after last pour.
Loading dock at Indianapolis Motor Terminal as it looks today, after 20 years' service
Heavy-Duty Concrete in Commerce and Industry
Driveways at Central Cold Storage Warehouse, Chicago, concreted in 1929.
Loading dock at Indiana
Motor Freight Terminal, In-
dianapolis, was the first 4 Incor'
heavy-duty concrete installa-
tion. In July, 1927, the old dock
was rebuilt over a week-end,
without tying up traffic. After
over 20 years' hardest service,
'Incor' concrete going as strong
as ever — no maintenance, except
where steel bumper plates be-
Two hundred heavy trucks a
day "back and fill" over the
eight driveways at Central Cold
Storage Warehouse, Clark Street,
Chicago, concreted with l Incor'
in 1929. Condition Report reads:
"No cracking, spalling or wear."
'Incor' has outlasted driveways
at other warehouses, causing
Central's superintendent to use
Incor' in floors, too.
Boston South Station's steel-
and-glass roof was replaced in
1929 with individual umbrella-
type platforms, rebuilt one at a
time with 'Incor'. Concrete
placed one day was in use the
next — avoiding weeks of traffic
disruption. Steel-tired baggage
trucks grind these concrete plat-
forms day and night, millions of
passengers tread the surface
' Incor' concrete is as good as
the day it was placed, nearly
twenty years ago. Real heavy-
Used in 13 platforms and eight ramps at Boston's South
Station, 'Incor' concrete has required practically no main-
tenance in nearly 20 years' service.
Heavy-duty concrete floor
in A. B. & C. R.R. Freight
Depot, Atlanta, surfaced
with 'Incor' in 1930, is good
as new today— outperform-
ing other adjacent topping
concreted at the same time.
Missot Pacific Tunnt Gray Summit, Mo., cone >ed with 'Incor' in 1929
In Railroad Service— Initial and Long-Range Economy
voved 3 *wk% «n ape
Uvea in bridge-dec^ con Incor'
Piftobu'g* mo r n« 927 E»g r
¥#c 20 yecY tec no
M ii i Pacifu Tuimx 1 at
/ Bummit, Mo., built in
1^2^ is pan of double-track
Lit fT bctw< en St Louis and
Jc fl n C»tj Tuiirn ] mpl<
iet< rmin< d tin d
the cut off uld be pi in
I ig h , on' f
forms did ( j< th< singl*
form w v % i
ward l^ s af pi*
]< Ming rat ns — w ks
u sa I. minim ng
ig d< • R i I
• When this Erie Railroad over-
pass, at Huntington, Indiana,
was built in 1931, 'Incor' ad-
vanced completion by three
weeks. Concrete carried heavy
traffic in 24 to 36 hours, reduc-
ing slow-order movement to a
minimum. This concrete is ex-
posed to all kinds of weather —
exposure conditions are severe.
Railroad Engineers' 1947 report
states: "Concrete as good as the
day it was finished, over 16
This is typical 'Incor' per-
formance in railroad service and
typical also of the service ' Incor*
is rendering to industry gener-
ally — through initial and long-
time economies, resulting from
dependable high early and high
Erie Railroad overpass, Huntington, Indiana
'Incor' concrete track and
driveway paving for Mis-
souri Pacific Railroad, Kan-
sas City, Mo., placed in
1929, saved 18 days. Some
of the team-track paving
was removed for later flood
wan construction— it was a
tough job to rip out the
'Incor' concrete. After near-
ly 19 years' service, the re-
maining 'Incor' concrete
"looks like it would last
forever," reads Condition
Main Interlocking of Jack-
sonville Terminal's Myrtle
Avenue plant is directly
over this underpass, rebuilt
under service in 1930, 300
train movements daily.
Tracks were removed from
bridge-deck in pairs; I-
beams thoroughly cleaned
and encased in concrete;
decks concreted with 'In-
cor'; slabs under traffic in
48 hours. "Not a break or
haircrack visible," says
1947 Condition Report.
Stamford, Conn. Yacht Club's salt-water pool, built with 'lncor y in 1930— giving excellent service today.
Watertight and Exposed
Structures — Long-Time
By curing thoroughly in the short time
concrete can be kept wet on most jobs, 'Incor'
helps assure durability and density essential
in watertight and exposed structures. Con-
creted with 'Ineor' in 1930, Stamford, Conn.
Yacht Club's salt-water swimming pool is
giving excellent service today.
So runs the record in watertight work.
Bone-dry utilities tunnel at Smith Paper Co.,
Lee, Mass., adjoins flume for 2 50 hp. water
wheel. Concreted with 'Incor' in 1931 — earlier
completion saved $500 — perfect watertight
service . no mainte nance.
Utilities tunnel at Lee, Mass. paper mill— concreted
with 'Incor' in 1931
In 1928, 'Incor' was used for
dock piling and deck slabs in
Tampa, Fla., Union Terminal.
Piles, lifted 3 days after cast-
ing, were driven to refusal 2 4
hours later. Dock work followed
immediately, with forms stripped
in one-third the usual time. Job
completed 21 days sooner, sav-
ing $10,000 in overhead and
Engineers of Gulf Florida Com-
pany, Inc., present owners, report
'Incor' piling in excellent condi-
tion today — no damage from
sea-water action or sea growths.
Ten years ago, railroad tracks
on the pier had to be raised,
and part of the 'Incor' deck was
torn out. Company Engineers
say, "The 20-year-old 4 Incor'
concrete is in better condition
than the newer work."
Mill Rock Reservoir, New Haven, Conn.,
8-million-gal. capacity, built with 'Incor'
in 1931. Exposure conditions are rugged
—repeated freezing and thawing ... 12-
ft. daily rise and fall of water. Concrete
is watertight . , . doing its job we
good for years to come.
Tampa, Fla. wharf, concreted with 'Incor' in 1 928-excellent condition today.
Mill Rock Reservoir, New Haven, Conn., built with 'Incor 1 in 1931
Mu pol Auditorium. Nr* Orleonv built with Incor in 1929
Building Construction — Earlier Use at Less Cost
• )' <»i ms i a principal In '
i cock m u cotts — mor< t«
day tl e \( r Tht <jui< k< i
OS CM l>< i' usc<i th« U w«
•nnt arc m W ith In.
at mti filled nnt da
,>P« d tl ;< : I Only hall at
i.'iuy forms in oet I — job
tfl is impro\ I all a) k
• m lit*
Built in J I Mut ;il
ditonum in N Oi leant Wil
A Uh lirtt bill! rigs to lie
td throughout witli 1
J < H Cei I h
1 6ML on rmt - mad*
, . *
il>U hightpeed com |
today — atturar age tt
and wt a' 1
In I we* I -
icet tra as • g*~
Field House, Louisiana State University, Baton Rouge-lower initial cost, lower annual cost, with Incor'
The frame is one part of a
building where work can be
speeded up without increasing
costs — and usually at substan-
tial savings. This principle, es-
tablished by 20 years' experience,
is illustrated by buildings at
Louisiana State University, Ba-
ton Rouge. In the Field House,
'Incor' saved 30 days' job over-
head and one formset. Concrete
in perfect condition, after 17
Lower initial cost as well as
lower annual cost — these are
key 'Incor' advantages.
In 1928, Charleston, S. C Museum of Natural History was under-
pinned to stop settlement. 'Incor' reduced timber requirements by
75%. Quicker back-fill and faster clean-up of job site reduced
construction hazards. Recent inspection shows building in excellent
Structures tike this new, all-concrete
partment Repair Shop, covering two city
Long Island City, N. Y., symbolize the ne
design and construction techniques. The h
tral arch, with 1 20-f t. clear span, prov
maximum unobstructed working space.
Close co-operation between the
City's Department of Public
Works, the Engineer and the Con-
tractor in the planning stage en-
visaged utmost economy in forms and
materials. 'Incor' concrete was used in bar-
rel-arch structures for early stripping, to save
time waiting for concrete to harden. Even in cool
weather, safe stripping strengths were obtained
within 48 hours, expediting construction schedules.
Here is modern functional design, expressed in
monolithic concrete, with its incomparable advan-
tages of fire-safety and low-maintenance.
SYMBOL OF QUALITY
EVER SINCE T 900
Efficient use of time is the basis of industrial progress. Prac-
tical application of this principle in line production methods is
the foundation of America's tremendous productivity. Care-
fully planned, straight-line operation makes it possible to con-
vert yesterday's waste and lost-motion into tomorrow's net
During the past 20 years this principle has spread through-
out the construction industry. One of the things which made
this possible was the introduction of 'Incor 1 24-Hour Cement.
By assuring in 24 hours the strength and durability that for-
merly required a week's curing or longer, * Incor' has enabled
designers and builders to cancel out unproductive time wait-
ing for concrete to harden and improve productive efficiency
all along the line.
Each year sees some new utilization of the dependable high
early strength and faster thorough job curing which are the
hallmarks of 'Incor concrete. This is the clear implication of
recent projects shown on the pages next following. Each proj-
ect illustrates a specific engineering or structural advantage
which the know-how of designers and builders has brought to
The ultimate emphasis is on that word "economical," for
the salient fact is that design and construction economies ob-
tained with 4 Incor' have helped broaden the range of concrete
construction — making it possible to provide the stability and
fire-safety of concrete at first costs which compare favorably
with less permanent construction. That is why the Tncor' era
continues to widen.
'INCOR' —AMERICA'S FIRST HIGH EARLY STRENGTH PORTLAND CEMENT
WIDENING THE ECONOMICAL RANGE
OF MODERN FIRE-SAFE CONSTRUCTION
This 13-story reinforced concrete apartment building, 11,500
sq. ft. per floor, was erected in 37 working days— two floors a
week. 'Incor' concrete was poured day and night. In 18 to 24
hours, carpenters were stripping and placing forms for the next
pour. Good job planning with 'Incor' resulted in a speed record
for concrete frame construction. Excellent workability produced
clean surfaces for exposed ceilings and floors. Time was the
essence on this project— needed living space was obtained in a
hurry, at low cost per cubic foot. Careful job planning, utiliz-
ing fast 'Incor' stripping schedules, widens the economical range
of modern fire-safe construction.
FACILITATING THE PLANNING
AND EXECUTION OF MODERN DESIGN
Six double seaplane hangars at Cedar Point, Md. dramatize the
adaptability of concrete to modern design. Sweeping 160-ft arches,
with 3%-in. concrete shell, provide unobstructed space for utmost
operating efficiency. Each hangar has clear door openings 160 ft.
wide, 40 ft. high. Forms for projects such as this are expensive, so
the Contractor's concreting schedule took full advantage of de-
pendable *Incor' high early strength for earlier stripping with min-
imum form requirements and maximum form re-use. Here is func-
tional design, with concrete's advantages of fire-safety and low
maintenance — built quicker and at lower cost.
EXPEDITING CONSTRUCTION OF INDUSTRIAL
BUILDINGS 'TAILOR-MADE' TO FIT OWNER'S REQUIREMENTS
That straight-line methods are just as effective in plant construction
as they are in plant operation is well illustrated by the Crawford
Clothes factory, covering an entire city block in Long Island City,
N. Y. This one- and two-story building is concrete beam-and-girder
construction, with 20-ft. bays. Estimates showed that the fastest erec-
tion schedule was possible by using 'Incor' and forming only 15%
of the area, instead of using three times as many forms for equal
speed with ordinary methods. 'Incor' saved two form-sets (costing
$10,880 at 1940 prices). Using a 5.2 bag 'Incor' mix, with water added
to produce a 5- to 6-inch slump, forms were stripped the second
morning, and moved horizontally. Result, a fire-safe concrete build-
ing, ^tailor-made" to fit the owner's requirements.
REDUCING FORMED AREA
BY 40% TO 60%
WHERE SPEED IS
Concrete is readily formed into any
architectural design. Forms are a prin-
cipal item in concreting cost. Especially
on modern, large-scale construction, the
investment in forms runs into substan-
tial sums. The size of this investment
is determined by the required job speed
and by the length of time it takes
concrete to attain service strength. The
quicker the concrete can be stripped,
the faster the forms can be re-used, and
hence the fewer the form-sets needed.
Forms filled with 'Incor' concrete one
day are ready to re-use the next , . .
one form-set with 'Incor' does the work
of two or three sets with ordinary con-
crete . . . more re-uses lowers the cost
per job. On this huge, all-'Ineor\ girder-
and-slab structure, the Contractor
formed only a fraction of the total area
using each form-set ten times. Forms
filled with 'Incor* one day, were rolled
into new position the next — an acre a
day under roof!
OF VITALLY NEEDED IMPROVEMENTS
Multi-million-dollar improvements often used to stand idl<
for weeks, waiting for concrete to harden. With § Incor\ next
day after the last concrete is placed, the entire improvement
can be opened to the public. This
important 'Incor* advantage is il-
lustrated by beautiful Cross Coun-
ty Parkway Bridge, at Fleetwood,
N. Y.. vital link in Westcheste i
County's highway system.
Using Incor' 24-Hour Cement, the Contractor saved
thousands of dollars on forms and falsework, forming only
one row of ribs and moving forms sideways. Pe rformano
on the ribs caused the Contractor to use 'Incor' for the deck
with further savings on forms and over! ad. The contrac
carried a $700-a-day penalty, but the job was finished 2
v ;s before deadline Roadway concrete was placed in cold
weather: 'Incor' minimized freezing risk, cut cost, sp d
ob progress — helped give the public earlii use of a vitally
r I improvement
BREAKING THE LOG- JAMS IN MODERN HIGHWAY CONSTRUCTION
Traffic congestion at one of the busiest spots in suburban
New York was relieved by widening the Saw Mill River
Parkway from four lanes to six, with center dividing strip,
for a distance of 2 miles from the terminus of the Henry
Hudson Parkway to Cross County Parkway.
Good job planning included the use of 'Incor' 24-Hour
Cement for closing out paving, access lanes, gas-station
approaches, and gaps left open for drainage work. 'Incor'
concrete placed one day was ready for use the next — "Slow
Down" signs came down days sooner!
At low temperatures, hardening is retarded— unprotected concrete
is exposed to freezing risk. Modern heat-protection methods make
it possible to maintain suitable curing temperatures until the con-
crete attains service strength and is safe from freezing. Of course
heat protection costs money but the sooner the concrete is service-
MAKING YEAR-AROUND CONCRETING A PRACTICAL, ECONOMICAL REALITY
strong, the less it costs. 'Incor' made year-around concreting a
practical, economical reality, by providing dependable high early
strengths with only 24 hours' heat-curing at 70°. This saves sixty
percent on heating fuel and labor, makes possible summer job
progress in cold weather.
Irrigation flume built with 'Incor' 24-Hour Cement
'Incor' assures durability and
watertightness in brewery tanks
Good concrete — properly designed,
carefully mixed and placed, thoroughly
cured — is watertight of itself. No spe-
cial "treatments" are needed! Curing
is usually where the rub comes — be-
cause, for watertightness, ordinary
concrete has to be kept wet 6 to 8
days, difficult if not impossible under
today's job conditions. By doing the
job in 24 to 48 hours, l Incor' assures
the thorough curing which is so essen-
tial wherever water or other liquids
have to be kept in or out.
Worn-out floors retard plant operation,
boost labor costs. But factories cannot shut
down for floor repairs — so 'Incor' 24-Hour
Cement solves another problem. Place 'In-
cor' concrete today — new floor is in use
tomorrow. 'Incor' avoids tying up the floor
for a week or longer, and by curing thor-
oughly in the short time concrete can be
kept wet on most jobs, 'Incor' helps assure
durable, non-dusting, heavy-duty service.
Photo, at left, taken Friday night, shows
worn-out floor — 3 men to a truck. Below,
new floor, topped with 'Incor' concrete
after close of business Friday and Satur-
day, in use early Monday morning-
man to a truck, instead of three.
REBUILDING HEAVY-DUTY FLOORS WITHOUT PLANT TIE-UP
GREATER WEAR RESISTANCE
DURABILITY TO MEET
Concrete exposed to weather and wear has to have
adequate durability as well a ^rength. Durability
requires a good concrete mix. carefully placed and
thoroughly cured. Greater curing efficiency of In-
cor 1 2 4-Hour Cement does the job in 2 4 to 48
hours — saves five or six days, makes it easier
and simpler to assure the durability needed for
resistance to weather and wear On this 600-ft
long pier for Seatrain Lines, Inc dependable In
cor' high early strength helped speed cold-weather
concreting, and faster thorough curing helps pro
vide the durability needed to resist the element
Precast concrete masonry units provide at-
tractive, fire-safe, durable construction at low
initial and low annual cost. Precast concrete
pipe and piling provide equally important
advantages in their particular fields of use.
'Incor' quickly earned an important place in
concrete products' manufacture, through in-
creased plant efficiency — faster output and
turnover, improved quality. These advan-
tages facilitated the application of the precast
principle over a steadily wider range. Hollow,
lightweight floor and ceiling slabs . . . attrac-
tive lighting poles . . . pile points for large-
scale construction, such as Stuyvesant Town
in New York City — these are only a few of
the many directions in which modern pr<
casting is spreading. This is practical prefab-
rication at its economical best — line-produc-
tion methods in construction.
AFFORDING DESIGNERS NEW OPPORTUNITIES
THROUGH MODERN JOB-SITE PRECASTING
In 110 well-designed, garden-type apart-
ment buildings for United Nations per-
sonnel at Jamaica, L. L, floors are rein-
forced concrete slabs, precast at the job in
115 'Incor* concrete molds. Ribs in floor
slabs, running in two directions, share the
load — the floor system averages only 2 T / 2
in, thick, including beams, slabs and gir-
ders, and uses only about half as much
concrete as conventional construction. 'In-
cor' slabs were lifted the day after pour-
ing, ready for lowering onto concrete
foundations and walls. This method pro-
vides the stability, fire-safety and low up-
keep of good concrete at minimum cost —
has great possibilities for industrial as well
as residence buildings.
Modern designing skill and the imaginative use of dependable high early
strength are steadily widening the horizons of the 'Incof* Era. s: Reg. us. Pat off.
■■ rrnrlfiTB Qt
For the Designer and Builde
Body of Trustworthy Facts
To help Designers and Builders obtain fullest advantage of the prop-
erties of 'Incor' and other Lone Star Cements, the Lone Star Concrete
Research Laboratories provide a steady flow of essential information
covering every principal phase of concrete and its use in the field.
This information is made conveniently available, in Service Books
and in the form of specific data to meet engineering and concreting
problems as they arise. It is practical information which adds up to
a comprehensive, trustworthy body of facts at the disposal of Engi-
neers, Architects, Contractors and Material Suppliers.
SYMBOL OF QUALITY
EVER SINCE 1 900
The Ultimate Equation
A business, like an individual, has a personality with its
own well-defined characteristics. In a business these charac-
teristics are determined by basic policies — self-imposed rules
for the conduct of the business. From its inception at the turn
of the century, the Lone Star Cement Corporation has oper-
ated under two cardinal principles :
(1) To make the best possible product;
(2) To treat every customer as though both the
Buyer and the Seller were members of the same
We try to square everything we do against these two key ob-
jectives. The twentieth anniversary of 'Incor' 24-Hour Cement
is as good a time as any to measure accomplishment against
The ultimate test of quality is performance, and on this
score the record of 'Incor' and the other Lone Star Cements
must speak for itself.
On the second point — which of course is simply a practical,
working definition of the overworked word 'service' — the rec-
ord must also speak for itself.
What we have sought to do is summed up in these conclud-
ing pages. It is for the Designer and Builder, the Dealer, Ready-
Mix Operator and Products Manufacturer, the Owner and the
general public, to judge how closely we have come to fulfilling
Actions rather than words — that is the ultimate equation in
earning and holding favorable public opinion.
'INCOR' — AMERICA'S FIRST HIGH EARLY STRENGTH PORTLAND CEMENT
For the Dealer ... A Broader Market
Two decades now cl ^rly demonstrate that 'Incor' 24-Hour Cement
has added another string to the Dealer's bow, making it possible for
him to broaden the base of his cement business by offering to his
ustomers the time-saving advantages of concrete placed one day and
1 use the next — of better concrete, too. because 'Incor' cures thor-
oughly in the short time it is possible to keep concrete wet on most
jobs, small or large.
'Incor' opened a new range of possibilities for
the application of construction know-how.
One set of forms with k Incor' produces the
same job speed as two or three form-se'vC with
ordinary cement. Forms are safely stripped
in 24 hours ... no reshoring to impede brick-
layers, carpenters, plumbers and electricians.
Jobs can be planned more efficiently — labor
costs are reduced. Fewer days on the job . . .
fixed overhead charges lowered. Equipment
available sooner for the next job. Winter
work expedited . . . heat-protection costs re-
duced at least a half. Each passing year sees
some further advance in the practical appli-
cation of 4 Incor' performance.
For the Products Plant... A Four-Way Advantage
Two decades of experience show that Incor' simplifies produc-
tion, cuts costs and increa s profits in the Products Plant.
Specifically 1) Quick rc-use cuts form requirements in I If
or doubles production with existing forms or pallet (2) Plast:
incor' mixes speed production: (3) 'Incor' units, thoroughly
cured, are ready for handling days sooner; (4) Deliveries ar
maintained with half or third the usual stock-pile.
For the Ready-Mix Operator...
An Added Service
A Ready-Mix Plant represents a substantial investment. Profit-
able operation depends upon volume and turnover. Today the
Ready-Mix Operator knows that when a customer asks for
high-early-strength concrete, he has a definite reason in mind
job speed, form saving, winter economies, assured water-tight-
ness. How to meet this demand? Many Operators find 'Incor'
is the answer — because America's FIRST high early strength
Portland cement, backed by 20 years' outstanding performance,
has earned the confidence of cement users everywhere. Wide
"acceptance" of 4 Incor\ as the standard of quality, is a decided
advantage to the Operator.
To serve the convenience of Dealer and User, bagged
'Incor' is shipped in carloads or in mixed cars with the
other Lone Star Cements.
Modern Hopper Cars expedite cement shipment to, and
handling at, Ready-Mix Plants, Products Plants and targe
Air-activated Containers move from mill to job, by rail and
water. Tidewater location of key Lone Star Mills adds
further flexibility to Lone Star service-
For the Building Industry • . . Service to Fit Every Need
Carefully d igned to fit the convenience of Dealers and Users, flexiblr Loac
Star service receives the utmost care and attention, all along the line, every day
in tin year — because wc realize that a reputation for dependability has to I
rned by day-to-day performance.
F I T
• Progress in building construction calls for parallel progress in cement per-
formance. Lone Star Cements meet the needs of advancing building techniques.
The record of 'Incor* 24-Hour Cement in its own wide field of usefulness ex-
presses the predominant quality characteristics of the family of which it is a
part. Rigid quality control and continuing product research assure the same
high standards of performance in all the Lone Star Cements,
now and in the years ahead.
LONE STAR CEMENTS COVER EVERY MODERN CONSTRUCTION NEED
Printed in U.S.A. — January, 1948
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